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Q: Out of the following, which may be termed as an unstratified Rock?
  • A. Sandstone
  • B. Limestone
  • C. Marble
  • D. Slate
Correct Answer: Option C - Stratified Rock– These are layered rocks and posses planes of cleavage or formation along which they can split. • Sedimentary rocks usually posses this property. Exp. Sandstone, limestone, slate etc. Unstratified rocks– These do not posses planes of stratification. • They posses crystalline and compact grains. • Igneous rock, are un-stratified. Exp. Granite, trap, basalt….. etc. Note : Marble and quartzite are un-stratified rock as type of metamorphic rock.
C. Stratified Rock– These are layered rocks and posses planes of cleavage or formation along which they can split. • Sedimentary rocks usually posses this property. Exp. Sandstone, limestone, slate etc. Unstratified rocks– These do not posses planes of stratification. • They posses crystalline and compact grains. • Igneous rock, are un-stratified. Exp. Granite, trap, basalt….. etc. Note : Marble and quartzite are un-stratified rock as type of metamorphic rock.

Explanations:

Stratified Rock– These are layered rocks and posses planes of cleavage or formation along which they can split. • Sedimentary rocks usually posses this property. Exp. Sandstone, limestone, slate etc. Unstratified rocks– These do not posses planes of stratification. • They posses crystalline and compact grains. • Igneous rock, are un-stratified. Exp. Granite, trap, basalt….. etc. Note : Marble and quartzite are un-stratified rock as type of metamorphic rock.